| (19) |
 |
|
(11) |
EP 2 458 584 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
08.08.2012 Bulletin 2012/32 |
| (43) |
Date of publication A2: |
|
30.05.2012 Bulletin 2012/22 |
| (22) |
Date of filing: 20.02.2009 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO
PL PT RO SE SI SK TR |
| (30) |
Priority: |
21.02.2008 GB 0803178
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
09712777.3 / 2257943 |
| (71) |
Applicant: Snell Limited |
|
Havant
Hampshire PO9 2PE (GB) |
|
| (72) |
Inventor: |
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- Diggins, Jonathan
Chesham, Buckinghamshire HP5 1YQ (GB)
|
| (74) |
Representative: Garratt, Peter Douglas |
|
Mathys & Squire LLP
120 Holborn
London
EC1N 2SQ
London
EC1N 2SQ (GB) |
|
| |
|
| (54) |
Audio visual signature, method of deriving a signature, and method of comparing audio-visual
data |
(57) The invention relates to the analysis of characteristics of audio and/or video signals
for the generation of audio-visual content signatures. To determine an audio signature
a region of interest - for example of high entropy - is identified in audio signature
data. This region of interest is then provided as an audio signature with offset information.
A video signature is also provided.